Cultivator.



y PATENTED MAR. 19, 1907.

P, M. SHERMAN.

lGULTIVATOR. APPLIoMIoN FILED JUNEa, 190e.

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No. 847,836. -PATENTBD MAR. 19, 1907.

P. M. SHERMAN.

r GUMTIVATOR.. APPLICATION P ILED JUNE 8, 1906.

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PATENT oEEIoE.

PLEZZ M. SHEEMAN or SHARON, KANSAS.

CULTIVATOR.

Specification of Letters Patent.

Patented March 19, 1907.

` Application filed June 8, 1906. Serial No. 820,810.

To all whom it 11i/wy concern:

Be it known that I, PLEZZ M. SHERMAN, a citizen of the United States, residing at Sharon, in the county of Barber, .State of Kansas, have invented certain new and useful Improvements in Ci'iltivators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to cultivators of the disk type; and the object thereof is to provide a device of that nature com )rising a body portion formed of connecte runners and provided at the rear end `thereof with a disk-frame carrying a pair of oppositely-disposed sets of disks.

Further improvements consist in the provision of means carried upon the disk-franie for separately adjusting the angle of inclination of each set of disks, in providingmeans likewise carried upon the disk-frame for vertically adjusting the position of said frame as an entirety, and in the provision of means upon the body of the machine for simultaneously moving each set of disks toward or away from the other set.

With these ends in view the device consists in the construction, combination, and arrangement of parts, all as hereinafter fully described, pointed out in the claim, and illustrated in the accompanying drawings, it being understood that c anges may be made in the position and material of the various parts and in the minor details of the machine in general without departing from the scope of the claim and within the spirit ofthe invention. j

Referring to the drawings, Figure 1 is a top plan view of a cultivator constructed in accordance with this invention. Fig. 2 is a side elevation. Fig. 3 is a rear elevation.

Like parts are designated by corresponding numerals in the several views.

In the drawings the body of the machine will be seen to consist of a pair of runners 7,

provided withhorizontal wings S, attached to their upper edges, the runners being connected by arches 9 and 10, the latter of which carries a seat 11 at its top.

The forward ends of the runners are upwardly inclined, as shown in Fig. 2, and each wing is provided at this point with a metal strap 12, to which are connected the draftrods 13, united by a ring 14 for engagement by a hook on the doubletree, (not shown) to which the draft-animals are attached.

. Each runner v7 has attached to its inner face an upwardly-projecting bracket 15. These brackets are located at the rear end of the runners, and the right-hand bracket,`as shown in Fig. 1, is providedupon its upper surface with rack-teeth 16. The brackets extend above the upper face of the wings, and each wing is pro vided adjacent its bracket with a bearing 13, in which is journaled the rod 19 of the diskframe, said rod being bent upwardly intermediate its ends, as shown in Fig. 3, to form an upward extension 17 of approximately the same sha e as the rear arch 10, but sufficiently smal er to enable'it to pass through said arch when the rod is rotated, as hereinafter described.

Located upon rod 19 adjacent the rackbracket is a lever 2.0, provided with a brakelever 21, having a pawl attached to the lower end for Cooperation with the rack-teeth 16 on said bracket. Rod 19 is provided with a sleeve 22, located adjacent each end thereof, as shown, each sleeve having upstanding ears 23, through which extends a rod 24. The front ear of each sleeve is enlarged to form a segmental rack 25. The rear end of each rod 24 is provided with a sleeve 26, having a lower extension 27, a pivot-pin 28 passing through said sleeve and extension and through a sleeve 29 on the disk-shaft 30, carrying a plurality of disks 31. As shown in Fig. 1,. the two shafts are oppositely disposed wit respect to each other, and each carries in the present instance three' disks, which are held in place upon their respective Shaft in spaced relation by means of collars 32, provided with the usual set-screw.

Attached to the front end of each rod 24, beyond the rack-ear 25, is a lever 33, provided with a brake 34, and pawl, operating with the rack-teeth of said ear. v

The outer end of each disk-shaft is connected, by means of a link 36, to one armcf an angle-lever 37, the other arm of which has a link connection 38 with the outwardly-ex-l tending end 39 of a rod 40, mounted in bear# ings 41 on the arch 10. The angle-levers 37 are pivotally mounted in slots in the ends of rod 19. Upon the upper face of said arch is mounted a segmental rack 43, perforated to admit the passage therethrough of rod 40. Attached to said rod adjacent said rack is an operating-lever 44, provided with a brake and pawl 45, the latter of which cooperates ICO IOS

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with said rack to hold said rod in its adjusted position. It will be obvious, therefore, that by swinging the lever 44.- in one direction or the other the link connection between the opposite ends of rod 40, to which said lever is secured, and the outer ends of the adjacent diskshafts will simultaneously angle both disk gangs correspondingly with respect to the line of draft, the oppositelydisposed arrangement of the shafts 30 causing their outer ends to swing upon the pivot-pins 28 'forwardly when the lever is swung in one direction and backwardly when it is swung in the opposite direction.

A movement in one direction of lever 2OI carried upon rod 19, will result in a correspending upward movement of the entire disk-frame, while a movement of said lever in the opposite direction will result in lowering the frame.

Owing to the provision of the levers 33 upon the rod the angle of inclination to the ground of each disk-shaft with its disks may be positivelyT regulated7 and the several levers are retained in their adjusted positions by means of the pawls carried by their brakes and cooperating with the respective racks.

As will be observed in Fig. l, the various levers are within easy reach of the occupant of the seat l1, provided upon arch 10.

The operation of the machine is thought to be suiciently clear from the above, and extended description thereof is therefore deemed unnecessary.

What is claimed is- A cultivator comprising a body formed of a pair of connected runners; a perforated bracket mounted upon the inner 'face of each ruimer adjacent the rear end thereof; a diskframe )ivotally mounted in said brackets; a pair ol' oppositely-disposed disk gangs connected with said frame; means connected with said frame, for raising or lowering the same as an entirety; an angle-lever pivotally mounted on each end of said frame; a link connecting each of said disk gangs with the adjacent arm or the corresponding anglelever; an arch mounted upon said runners in advance of said brackets; a perforated racksegment mounted upon the top of said arch 3 a rod mounted in said rack-segment intermediate its ends and having its opposite ends bent downwardly; a link connecting each of said bent ends with the opposite arm ofthe corresponding angle-lever; a lever secured to said rod and connected. with said segment 'for simultaneously angling hoth disk gangs with respect to the line of draft g and separate means connected with each disk gang for adjusting the angle of inclination of the same with respect to the ground.

ln testimony whereof l allix my signature in presence of two witnesses.

PLEZZ M. SHERMAN.

Wlitnesses:

H. H. Fain, J. T. ALFRED. 

